Global Ionospheric Model Accuracy Analysis Using Shipborne Kinematic GPS Data in the Arctic Circle

Remote Sensing

Ziyin Wu¹  Chunguo Yang¹  Zhaocai Wu¹  Tao Zhang¹  Xiaowen Luo¹  Di Wang¹  Jinyao Gao¹  Jinling Wang² 

[1] Key Laboratory of Submarine Geosciences, State Oceanic Administration and Second Institute of Oceanography, Ministry of Natural Resources, 36 Baochubei Road, Hangzhou 310012, China;School of Civil and Environmental Engineering, UNSW, Sydney, NSW 2052, Australia;

关键词: shipborne GPS;    global ionospheric modeling products;    accuracy analysis;    Arctic Circle;   

DOI  :  10.3390/rs11172062

来源: DOAJ

【 摘 要 】

The global ionospheric model built by the International Global Navigation Satellite System (GNSS) Service (IGS) using GNSS reference stations all over the world is currently the most widely used ionospheric product on a global scale. Therefore, analysis and evaluation of this ionospheric product’s accuracy and reliability are essential for the practical use of the product. In contrast to the traditional way of assessing global ionospheric models with ground-based static measurements, our study used shipborne kinematic global positioning system (GPS) measurements collected over 18 days to perform a preliminary analysis and evaluation of the accuracy of the global ionospheric models; our study took place in the Arctic Circle. The data from the International GNSS Service stations near the Arctic Circle were used to verify the ionospheric total electron contents derived from the kinematic data. The results suggested that the global ionospheric model had an approximate regional accuracy of 12 total electron content units (TECu) within the Arctic Circle and deviated from the actual ionospheric total electron content value by about 4 TECu.

【 授权许可】

Unknown